Cross roller bearings, also called crisscross roller bearings, use cylindrical rollers as rolling elements arranged in a crisscross layout on raceways. The rollers are spaced apart by retainers or spacer blocks. These bearings deliver high rotational accuracy and heavy load capacity, with a wide scope of applications.

Cross roller bearings can withstand axial loads, radial loads, overturning moments and other combined loads. Their rigidity is 3 to 4 times higher than that of conventional bearings. Featuring compact dimensions with outstanding load-bearing performance, they are widely used in CNC rotary tables, multi-axis CNC turntables, rotary tool magazines, industrial robots, robot joints, special robot joints, hollow rotary platforms, alignment machine platforms, radar communication equipment and other equipment.

RU (YDRU) series cross roller bearings are provided with mounting holes on both inner and outer rings. No fixing flanges or support pedestals are required, which greatly simplifies installation. The inner and outer rings are designed as integrated components to ensure stable rotational accuracy and consistent torque. They are applicable to operating scenarios where either the outer ring or inner ring rotates.

Features of RU (YDRU) Series Cross Roller Bearings

1. 1.Ultra-high Precision
   Precision grades up to P4 and P2, with rotational runout as low as 0.001 mm.
2. 
   2.Superior Stability
   Heat treatment processes are strictly controlled with multiple tempering cycles to release internal stress, realizing excellent long-term stability.
3. 
   3.High Rigidity
   Adopting a crisscross roller layout, RU (YDRU) bearings can bear axial loads, radial loads and overturning loads simultaneously.
4. 
   4.Compact Structure
   Small overall size effectively saves installation space for main equipment.
5. 
   5.Premium Quality
   Manufactured in strict accordance with international standards with excellent interchangeability, capable of replacing imported bearings.

Main Models of RU (YDRU) Cross Roller Bearings

RU28, RU42, RU57, RU66, RU85, RU124, RU148, RU178, RU228, RU297, RU445

RU85G, RU124G, RU148G, RU178G, RU228G, RU297G, RU445G

RU85X, RU124X, RU148X, RU178X, RU228X, RU297X, RU445X